Method and device for positioning a cross cut on a printing substrate in rotary presses

摘要

The device has a cross cutter (110) and a computing device (16) that generates control signals for changing the phase angle of the printing unit with respect to the cross cutter. A path length variation device (26) changes the path length of the printing material web (10) by the control signal of the computing device in order to adjust the cross cutter position on the printing material. An Independent claim is also included for a method of positioning a cross cutter relative to printed images on the printing material web in a web fed press.